It is important to consult with your healthcare provider before taking any medication or herbal remedy during pregnancy, including worm expeller. While some sources suggest that worm expeller may help relieve naval pains, there is limited research on its safety and effectiveness specifically during pregnancy. Worm expeller contains active ingredients that could potentially harm the developing baby. Your healthcare provider will be able to assess your individual situation and provide guidance on safe and effective treatments for your naval pain. They may recommend alternative remedies or prescribe medications that are known to be safe during pregnancy. It is always best to prioritize the health and well-being of both you and your baby by seeking professional medical advice.